Method and system using vibration signatures for pairing master and slave computing devices

A system of using vibration signatures for pairing two portable computer devices. The system includes an apparatus that has a master side and a slave side. The slave side has a frictional structure. A first portable computer device is inserted into the master side. When a second portable computer device is inserted through the slave side, a pattern of vibration is generated. Vibration detecting devices on the first and second portable computer devices detect the pattern of vibration. A program of the first portable computer device validates a master vibration signature and configures the first portable computer device as a master device. A program of the second portable computer device validates a slave vibration signature and configures the second portable computer device as a slave device. The master device and the slave device are automatically paired.